(Alex Edelman/picture-alliance/dpa/AP Images) Paul Ryan and Republicans speak at the White House on December 20, 2017, after the passage of their tax bill. W hy is it that even though the economy has done better under Democrats than Republicans for decades, Americans have long considered the GOP to be the better party when it comes to “the economy and jobs”? The answer is that for decades Republicans have told a consistent story about how the economy works: Businesses are the job creators so government should cut taxes and regulations and let the free market work. That’s the story they are using to sell the 2017 Tax Act, and it’s still believed by a majority of voters. However, the tax law has given Democrats a tremendous opportunity. They can use the Republican tax cuts as an opportunity to debunk the GOP trickle-down narrative and provide a progressive explanation of how we can grow the economy, create jobs, and raise wages for everyone. While public opinion toward the new tax law...